Helper类包装的MVC.NET Web开发的会议？ [英] Helper class to wrap the Session for MVC.NET Web development?

问题描述

在<一个href=\"http://stackoverflow.com/questions/889516/session-null-in-asp-net-mvc-controller-constructors\">this后笔者建议实施一个包装器会话，以减轻测试和解耦控制器code。我会想获得关于如何实现这一目的的优良包装的想法。

我看到，在 $ C $的CProject 有一个样本，但它看起来比什么，我需要更多的方式。

编辑1：

确定。由于约书亚我有实施和简单的会话的辅助类。我在这里张贴类，让您的意见，看看你会补充一下。

 公共接口ISessionHelper
{
    吨得到＆LT; T＆GT;（字符串键）;
}公共类HttpContextSessionHelper：ISessionHelper
{
    私人只读的HttpContext _context;    公共HttpContextSessionHelper（HttpContext的背景下）
    {
        _context =背景;
    }    公众吨得到＆LT; T＆GT;（字符串键）
    {
        对象值= _context.Session [关键]        返回值== NULL？默认（T）（T）值;
    }
}
 

在控制器我有这样的事情：

 私人只读ISessionHelper _sessionHelper;    公众的HomeController（ISessionHelper会话）
    {
        _sessionHelper =会议;
    }    公共HomeController的（）
    {
        _sessionHelper =新HttpContextSessionHelper（System.Web.HttpContext.Current）;
    }
 

解决方案

其中的<一个href=\"http://stackoverflow.com/questions/889516/session-null-in-asp-net-mvc-controller-constructors/1020465#1020465\">other答案对这个问题曾与此评论有一个很好的简单包装的例子网站。有人评论所作 murki 。

In this post the author recommends implementing a Wrapper for the session to ease testing and decoupling the controller code. I will like to obtain ideas on how to implement a good wrapper for this purpose.

I see that in CodeProject there is one sample but it looks way more than what I need.

EDIT 1:

Ok. Thanks to Joshua I have implement and simple session helper class. I am posting the class here to get your opinion and see if you will add something.

public interface ISessionHelper
{
    T Get<T>(string key);
}

public class HttpContextSessionHelper : ISessionHelper
{
    private readonly HttpContext _context;

    public HttpContextSessionHelper(HttpContext context)
    {
        _context = context;
    }

    public T Get<T>(string key)
    {
        object value = _context.Session[key];

        return value == null ? default(T) : (T)value;
    }
}

In the controller I have something like this:

    private readonly ISessionHelper _sessionHelper;

    public HomeController(ISessionHelper session)
    {
        _sessionHelper = session;
    }

    public HomeController()
    {
        _sessionHelper = new HttpContextSessionHelper(System.Web.HttpContext.Current);
    }

解决方案

One of the other answers to that question had a comment with this website that has a good simple wrapper example. The comment was made by murki.

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